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Do you have CUCM or CME? What type of PSTN connectivity do you have, POTS, PRI, SIP? <br />
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If you have CUCM you can put the Caller ID mask on the Route Pattern, Route Group, or the individual phone (Bulk Edit). But if you have POTS for PSTN connectivity you won't be able to, as caller id will show up with whatever line is used for the outbound call.
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Thanks for the response @buckethead34... Most likely will be POTS or PRI.<br />
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But what we are trying to find out is whether there is an option to delete the callerID history globally? Not whether you block caller ID from showing.
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I'm actually just trying to find out if it is possible. It doesn't sound like it is.<br />
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Just wanted confirmation about Cisco, whether possible or not. I have a client complaining that the Avaya system they purchased cannot do it and want to be certain this isn't a feature of any of the major phone systems.
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I’m trying to find out if a Cisco PBX can do a global caller id delete. If at any phone on the system, if you delete the caller id it removes it from all phones.
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I’m trying to find out if a Cisco PBX can do a global caller id delete. If at any phone on the system, if you delete the caller id it removes it from all phones.

Global caller ID delete

Cisco PIX is a dedicated hardware firewall appliance; the Cisco Adaptive Security Appliance (ASA) is a firewall and anti-malware security appliance that provides unified threat management and protection the PIX does not. Other Cisco devices and systems include routers, switches, storage networking, wireless and the software and hardware for PIX Firewall Manager (PFM), PIX Device Manager (PDM) and Adaptive Security Device Manager (ASDM).

Cisco

IP telephony (Internet Protocol telephony) is a general term for the technologies that use the Internet Protocol's packet-switched connections to exchange voice, fax, and other forms of information that have traditionally been carried over the dedicated circuit-switched connections of the public switched telephone network (PSTN). Using the Internet, calls travel as packets of data on shared lines, avoiding the tolls of the PSTN. The challenge in IP telephony is to deliver the voice, fax, or video packets in a dependable flow to the user.